Find the power of a concave lens of focal length 2 meter???
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Explanation:
The power of a lens is defined as the reciprocal of its focal length in metres, or P=f1, where P is the power in dioptres and f is the focal length in metres.
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Answer:
Power=1/(Focal length)
=1/2
=0.5 Dioptre.
The power of lens is 0.5 Dioptre.
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